Heating and ventilating drying apparatus.



PATENTEI) MAR. 7,,19'05.

- T. 0. BELDING & R. B. HELDMAN.

HEATING AND VENTILATING DRYING APPARATUS.

APPLICATION FILED APR. 4. 1904- 3SHBET3-BHEET 1.

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N0. 784,026. PATENTED MAR. 7, 1905.

T. O. BBLDING & R. B. HELDMAN. HEATING AND VENTILATING DRYING APPARATUS.

APPLICATION FILED APR. 4, 1904.

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MM l'l M flrromc 1 No. 784,026. PATENTED MAR. 7, 1905. T. O. BELDING 5;R. B. HELDMAN.

HEATING AND VENTILATING DRYING APPARATUS.

APILIOATION FILED APR. 4;, 1904.

3 SHEETS-SHEET 3.

Patented March 7, 1905.

'THOMAS C. BELDING AND RUFUS B. HELDMAN, OF CANilON, OHIO, ASSIGNORS TOTHE CANTON CLOTHES DRYER AND MANUFACITUIt INC COMPANY, OF CANTON,Ol-IIO, A CORPORATION OF OHIO.

HEATING AND VENTILATING DRYING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 784,026, dated liiarch7, 1905.

Application filed Apri14, 1904. Serial No. 201,500.

To all whom, it may concern:

Be it known that we,I.11oMAs C.B1 1LDING and RUFUS B. HELDMAN, citizensof the United States, residing at Canton, in the county of Stark andState of Ohio, have invented certain new and useful Improvements inHeating and Ventilating Drying Apparatus; and we do hereby declare thatthe following is a full, clear, and exact description of the same,reference being had to the annexed drawings, making a part of thisspecification, and to the ligures oi reference marked thereon.

The present invention has relation to a sys tem of or method for heatingand ventilating drying apparatus, and comprehends or comprises adrying-chamber, means of admitting a continuous current of air to thedryingchamber, means for heating the air when within the drying-chamber,and means for remov' ing the heated air and moisture from thedrying-chamber, causing a continuous current of air to enter, to becomeheated, to circulate among the articles to be dried, and be drawn fromthe drying-chamber cautiously, as hereinai'ter set forth.

In the accompanying drawings, Figure l is a perspective view showing allof the diil'erent parts properly arranged with reference to each otherand certain portions broken away to illustrate the interior of saidportions where necessary for said interior to be shown. Fig. 2 is acentral vertical cross-section through Fig. l and shows one section ofthe radiator properly located within the drying-clntmber. Fig. 3 is atop view of the stove and radiator, showing portions oi. these partsbroken away to illustrate the travel of the heated air from the stovethrough the radiators until it reaches the pipe which conducts it to thechimney or line by which it reaches the outer air. Fig. at is anenlarged vertical sectional view through the upper front port-ion ofstove, illustrating a modification of that portion of Fig. 2. Fig. 5 isa side elevation of the dryingchamber. showing a portion of the sidenext the stove broken away to illustrate the means employed forpreventing the air entering the drying-chamber from leaving until it hascirculated among the articles to be dried. Fig. 6 is a front view ol thestove, showing part of the duct thereof broken away to illustrate theposition of the Front damper. Fig. 7 is a transverse section on line 66, Fig. 6. Fig. 8 is a top view of the stove, showing the position oithe side ducts which convey the air beyond the lire when desired.

Similar numerals of relerenm: indicate correspond ing parts in all theligures ol' the draw ings.

1 represents the dlying-chamber, the illustration showing the interiorconstruction suitable for clothes-drying, but may be designed For dryingfruit, cores, enameled articles, or for other purposes.

2 represents the openings for the admission of air to thedrying-chainber, which openings may be located in the opposite wall, oropenings may be in both walls or ends, if desired.

3 is an opening or aperture from which the air that has entered thedrying chamber through opening 2 is conveyed from the drying-chamber,which process will be hereinafter more fully described.

i represents a stove which is for the purpose of furnishing heat to theradiators 5, which are located within the drying-chamber, as shown, andare For the purpose oi? heating the air within the dryii'ig-clnunberduring its passage or transit from openings 2' to ()pei'iing or aperture3.

(i represents a duct for the purpose oi conveying the air throughopening 3 to theslove {1, which air is used for a purpose which will befully hereinafter described.

7 represents a pipe which conducts heated air, also smoke, gases, andother products of combustion, from the stove and radiators to thechimney or line and from thence to the outer air.

In the construction ol the stove l no provision is made for admittingair or oxygen to the fuel-chamber 8 other than supplied by the air whichleaves the drying chamber I through opening or aperture 3, which air isdrawn or conveyed through duct6 to opening 9, which opening 9 IS locatedon the rear vertical wall of duct 6 and admits of the air passing underthe grate 10 and thence upward between the openings in grate 10 tomingle with the fuel in the fuelchamber 8, thus aecelerating combustion,which combustion su perheats, rarefies, and expands the air thusadmitted, causing it to seek an outlet with the smoke, gases, and otherproducts of combustion through the pipe 7.

At the rear of stove 1 is located a damper 11, which damper 11 when in ahorizontal position allows the smoke, gases, &c., to pass directly intopipe 7 and when in a vertical position closes opening 11 between thefront ends of damper-walls 12 and deflects the superheated currents ofair, smoke, gases, and other products of combustion between thedamper-walls 12 and the walls 13 of the stove 1, from whence it entersthe outer openings 14 of the radiators 5, and thence through and alongthe outerducts 15, returning through .the inner ducts 16 to openings 17,entering the stove between damper-walls 12 and reaching the pipe 7passes from thence to the chimney, the draft of the chimney bringingabout the circulation, thus suflieiently heating the air within thedrying-chamber.

For the purpose of positively causing the air in duct 6 to enter theopening 9 when desired the damper 18 is provided, which damper 18 isattached to rear vertical wall 19 of duct 6 and located directly aboveopening 9 and so constructed that when raised or ex tended across duct 6all of air in duct 6 passes through opening 9. The duct 6 extends upwarduntil it passes above the fuel-chamber, as shown in Figs. 1, 2, and 4.The object of thus extending duct 6 is for the purpose of using the airfrom the drying-chamber as a check or regulation to combustion whennecessary by passing it over or beyond the fire in fuel-chamber. Thedamper 18 when thrown downward closes opening and admits of air in duct6 passing upward and entering the stove above the fuel-chamber bypassing over the inner wall of duct6 and under deiiectingplate 20through passage 21. The air thus ad mitted bypassing over or beyond thelire in fuelchamber acts as an immediate and positive check to the tireand in its passage over or beyond the fire becomes superheated, and,mingling with products of combustion, passes to rear of stove, entersthe radiators, and reaches the pipe-outlet by making the circuit of theradiators, as described. Detent 22 on lever 23 on damper 18 engages thenotches in segmented ratchet 24:, admitting of damper 18 being held 'inany desired position or adjustment, thus allowing part of the air induct 6 to pass through and part pass over the fire, as desired,providing positive control and regulation to combustion.

Damper 11 is raised or lowered by means of rod 26 and intermediateconnections, such holding damper 11 at any desired angle, so as toincrease or lessen the opening or passage 11, leading to pipe 7. with aseries of teeth 30, which engage bracketdetent 30", admitting of damper18 being held at any desired angle, thus graduating the amount ofsuperheated air entering the radiators, the remainder having directaccess to pipe 7, thus controlling and regulating the heat within thedrying-chamber.

hen it is desired to use fuel which will not admit of the air in duct 6being passed directly over the tire, the ducts 31 are employed, whichducts 31 convey the air to a point beyond the lire, the stop-plate 33being employed to close passage 21 between said ducts 27, which air alsoacts as a check or regulator to combustion in fuel-chamber 8 andbecoming superheated passes backward into the radiators 5, and thence topipe 7, and onward to flue, and thence to outer air. i

For the purpose of preventing the air which enters the drying-chamber 1through opening 2 from passing directly to and out of opening 3 until orbefore it has become heated and caused to rise and circulate among thearticles in drying-chamber the dividing or separating plate 29 isprovided, which plate 29 extends horizontally entirely across thedrying-chamber from side 36 to side 31 and is located so that itseparates openings 2 and 3, as shown in Figs. 1 and 2, and to within ashort distance from ends 32 and 33, as shown in Figs.

1 and 5. The ends of the plate 29 are inclined upward to a pointdirectly under the wire screen 37, which wire screen is for the .purposeof preventing articles in process of drying from falling upon theradiators or deflecting-plate and is located directly under dryingracks36. The openings 35 are for the pas sage of air to opening 3 after ithas become heated by radiators 5. The air entering openings 2 passesdirectly under the radiators 5 and becoming heated rarefies, expands,and rises, filling the upper portion of the dryingchamber. The continualinflux of air atopenings 2 causes a continual displacement of the airalready heated to ends of drying-chamber, which ends being somewhatcooler than the central portion lower the temperature of the air to someextent, causing the air to descend and ind an outlet through openings 34to opening 3, which is brought about by the draft of the chimney orline.

\Ve do not confine ourselves to the particular means shown in 1 and 5for keeping the air entering the drying-chamber at openings 2 from beingdrawn to opening 3 before it has become heated or performed the oiiiceintended, as there can be many modilications of this idea employedwithout departing from the nature of this invention.

Any moisture, vapor, or steam liberated, generated, or caused by theaction of heat as lever 27 and shaft 28, for the purpose of i from theradiators upon the articles in process Rod 26 is provided *reaeae oidrying is immediately removed by the contin uous currents of air passingthrough openings 34 in their travel to opening?) and is carried with theair in duct 6 and in passing through, over, or beyond the fire becomessuperheated and mixing with the smoke, gases, and other products ofcombustion is dissipated and escapes through the line or chimney to theouter air, having in its passage a tendency to remove soot in stove andradiator, and thus increase rather than diminish the intensity oi heatin stove and radiator and augment the draft of line or chimney.

The air of duct 6 enters stove t at a high temperature and but littlelower than air in upper portion of drying-chamber, thus requiring theminimum amount of fuel and fire in stove to superheat it to atemperature sufliciently high to i'naintain the desired degree of heatwithin the drying-chamber when passing through the radiators. Thecontinued influx of air to drying-chamber, combined with the system ofcontrolling and regulating employed, renders it impossible to overheator burn the articles in process of drying.

By our particular system or method of continuously admitting air to andheating, circulating, and continuously exhausting the air from thedrying-chamber perfect and complete; circulation combined with rapidevaporation and ventilation in shortest period of time with greatesteconomy of fuel is secured, resulting in a drying system of highest obtainable efliciency at minimum cost of operating.

.It will be understood that the atmospheric air may be introduced intothe drying-chamber at any suitable point, and the air after havingperformed its function may be withdrawn from the drying-chamber atplaces other than that shown, and the air thus withdrawn conveyed under,througlnover, beyond, or behind the combustion-chamber and the sameobject accomplished.

llaving fully described our invention, what we claim as new, and desireto secure by Letters Patent, is

1. ln a drying and, ventilating system, a drying-chamber having locatedtherein a plate, provided with angled flanges, and the flanges spacedfrom the inner faces of the end walls oi the drying-chamber, atmosphericopenings located above the plate, radiators located within thedrying-chamber and above the plate, said radiators having duets adaptedto receive heated air from the combustion-chamber ot' the stove,andducts adapted to remove the air to a fine and a duct leading from thedryingchamher from a point below the plate, said duct extended below thecombustion-ehamber ol the stove, and continued above and over thecombustion-chamber, and a damper located in the forward vertical portionof the duct, said damper adapted to close the duct or partially closesaid duct, substantially as and for the purpose specified.

2. l n a drying and ventilating system, a heating device and adry'irig-chamber, radiators located within the drying-chamber, saidradiators having ducts comi'nunicating with the line and thecombustion-chamber oi the heating device, a damper located between thecombustion-chamber and the flue, a plate located within thedrying-chamber, and said plate located below the radiators, air inletand outlet openings located above and below the plate, the upper openingconstituting an air-inlet to the drying-chamber and the lower one anair-outlet opening from the drying chamber, a duct adapted to convey theair from the outlet-opening of the drying-charm ber through or over thecombustioil-chamber of the heating device, substantiz'tlly as and forthe purpose specified.

3. In a drying and heating system, aheating device and a drying-ehamber,means for the introduction of air into the drying-chamber, means forheating the air within the dryingchamber, and means for withdrawing theair from the drying-chamber and passing the air through or over thecombustion-chamber ot' the heating device, substantially as and for thepurpose specified.

4. In a heating and drying system, a heating device, a drying-chaniber,means for the introduction of atmospheric air to the drying chamber,means for heating the air within the drying-chamber, and means fordividing the cooled air from the heated air contained in thedrying-chamber, and means for withdrawing the cooled air from thedrying-chamber through or over the combustion-chamber of.

the heating device, substantially as and for the purpose specified.

5. In a heating and drying system of the class described, adrying-chainber having located therein radiators, an air-inlet locatedbelow the radiators, a stove or furnace, a duct ex tended from the lowerportion of the dryingchamber and communicating with said d ryingchamber,said duct extended to the combustion-chamher ol. the stove and adaptedto convey the air thus withdrawn into the combustion-chamber,substantially as and for the pn rpose speeilied.

6. In a heating and drying system, a heat ing device and adrying-chamber, said heating device provided with acolilbustion-chamber, a duet providing atmospheric communication betweenthe d rying-chambcr and heating device, said d not provided with adamper adapted to shunt the air from said duct, either under or over thecombustion-chamber, said damper also adapted to divide the air in duct,and shunt a part under and a part over the combustion-chamber,substantially as and For the purpose specified.

7. In a heating and drying system, a heat- ITO ing device and adrying-chamber, a duct leading from the drying-chamber to thecombustion-chamber of the heating device, said duct adapted to removethe cooled air from the drying-chamber, means for dividing the air inthe drying-chamber, and means for conveying the cooled air over thecombustion-chamber of the heating device, and radiators located in thedrying-chamber, and outgoing and return ducts located in the radiators,substantially as and for thepurpose specified.

8. In a drying and heating system, a heating device and adrying-chamber, said heating device and drying-chamber connectedtogether and the combustion-chamber of the heating device supplied withair withdrawn from the drying-chamber, and means for dividing the cooledair from the heated air in the dryingchamber, substantially as and forthe purpose specified.

9. In a drying and heating system, a flue, a heating device and adrying-chamber, means for the introduction of air into thedryingchamber, means f or heating the air within the drying-chamber, andmeans for withdrawing the air from the drying-chamber, and passing saidair to the flue in contact with the fuel in heating device or otherwise,substantially as and for the purpose specified.

10. In a heating and drying system, a heating device provided with aflue, a drying-chamber, radiators located within the drying-chamber,means for the introduction of air into the drying-chamber, the heatingdevice and radiators providing means for heating the air within thedrying-chamber, and means for passing said heated air from thedrying-chamber through the heating device in contact with the fuel orotherwise, and from thence through the radiators located in thedrying-chamber to the flue, substantially as and for for the purposespecified.

11. In a drier, the combination with a cabinet arranged for thereception of articles to be dried and having air-inlet openings, of aradiator disposed within the cabinet, a stove, means for conducting theproducts of combustion from the stove to the radiator, an exitpipecommunicating with the radiator, and a duct communicating with theinterior of the cabinet and with the space beneath the grate of thestove, substantially as set forth.

In testimony that we claim the above we have hereunto subscribed ournames in the presence of two witnesses.

THOMAS C. BELDING. RUFUS B. HELDMAN. \Vitnesses:

F. \V. BOND, J. R. BOND.

